Guard for trolley-wheels.



PATENTED MAY 17, 1904.

C. 0. PHILLIPS.

GUARD FOR TRO'LLEY WHEELS.

APPLICATION FILED MAB. 2, 1904.

H0 MODEL.

Witnesses:

UNITED STATES Patented May 17, 1904.

PATENT OFFICE.

CHARLES O. PHILLIPS, OF KALAMAZOO, MICHIGAN, ASSIGNOR OF ONE- HALF TO HIRAM O. STREETER, OF KALAMAZOO, MICHIGAN.

GUARD FOR TROLLEY-WHEELS.

SPECIFICATION forming part of Letters Patent N 0. 760,145, dated May 1'7, 1904;.

Application filed March 2, 1904.

structions is reduced to a minimum and is quick andeven; second,to provide an improved guard for trolley-wheels which is effective and durable in use and compact and simple in construction; third, to provide an improved guard for trolley-wheels which may be quickly applied to a trolley of the usual construction.

Further objects and objects relating to structural details will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined, and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawings, forming a part of this specification, in which Figure 1 is a detail side elevation view of my improved guard for trolley-wheels, it being illustrated in operative position in reference to the trolley-wire, its depressed position being indicated by dotted lines. Fig. 2 is a detail rear elevation view of my improved guard for trolley-wheels. Fig. 3 is a detail cross-sectional view taken on line 3 3 of Fig. 1 looking in the direction of the little arrows at the ends of the section-lines.

In the drawings similar letters of reference refer to similar parts throughout the several views.

Referring to the lettered parts of the drawings, the trolley-harp A, the pole A, and the wheel A are of the usual or any desired construction.

I have illustrated my improved guard for Serial No. 196,166. (No model.)

trolley-wheels in connection with a trolleywire to show its operative relation.

I provide a yoke or bracket B, having collars B B, adapted to be slipped upon the pole and the stem of the trolley-harp, as clearly appears in Figs. 1 and 2. Suitable set-screws are carried by the collars B B" for adjustably securing this yoke or bracket B in place. When the trolleypole is of small diameter, I preferably provide a bushing-ring a for the collar B. (See Fig. 3.) The upper collar B is provided With arms Z), which project upwardly at each side of the trolley-harp. The arms C C of theguard C extend upwardly to embrace the sides of the trolley-wheel and are carried forwardly to embrace the sides of the same. The guard C is provided with a downwardly-projecting stern C, which is arranged through a suitable slot in the rearwardly-projecting arm 5 on the bracket B. The upper end of the guard G is supported by links E, which are secured to the arms 6 of the bracket B. A tension-spring D is provided for holding the guard normally upward. This spring D is arranged between the arm 6 and the adjustable collar D on the stem C. By adjustment of this collar the tension of the spring can be regulated.

The arms C are connected at the rear of the wheel by a cross-piece 0. Guards or shields c are provided for the links E, so that there is no liability of these parts engaging the trolley-wire. The arms of the guard extend upwardly and are curved over the harp and lie close to the wheel, as clearly appears in the drawings, so that they lie in the same general direction as the trolley-pole.

When the guard C comes in contact with an obstruction as, for example, a cross-arm or trolley-wire support-At is forced downwardly and backwardly to the position indicated by dotted lines in Fig. 1 until the obstruction is passed, when it is promptly returnedto its upward position by the spring D.

The spring D is only of sufficient strength to return the guard promptly and retain it in its elevated position, so that when an obstruction is met it is easily deflected or forced downwardly without throwing the wheel from the wire. The action is very prompt and the guard is so positioned that it does not cause the wheel to bind in turning sharp corners. It is also so arranged that no blows are delivered to the trolley when it meets an obstruction. The guard also serves as an effective finder. If desired, the arms may be curved outwardly somewhat, which would add to this result. By these particular means of supporting the guard I secure very free movement of the same, and it is moved through the least possible space to secure the results, so that its action is free and quick.

The guard is very light, so that it does not add any objectionable weight to the trolleypole. It is, however, owing to the arrangement of the parts which reduces the strain to a minimum, very durable in use.

I preferably provide the arms 6 with a perforation b, in which the trolley-rope may be secured.

I have illustrated and described my improved guard for trolleys in the form preferred by me on account of its economy of construction and efliciency in use. I am aware, however, that the same maybe very considerably varied in structural details without departing from my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

I 1. The combination ofatrolley-pole; aharp;

a wheel; a yoke or bracket B having collars B B adapted to be slipped upon a trolley.- pole; set-screws for adjustably securing said yoke in place; a pair of arms 5 on said bracket projecting upwardly at each side of said harp; an arm I) on said bracket having a perforation therethrough; a guard Chaving upwardly and forwardly curved arms C adapted to embrace the sides of the wheel and projecting above the same; a downwardly-projecting stem 0 on said guard arranged through the perforation in said arm 6'; ,a coiled spring D arranged on said stem; an adjustable collar D on said stem for regulating the tension of said spring; and a pair of links E connected to said arms Z2 and to said guard, all coactingfor the purpose specified.

2. The combination of atrolley-pole; aharp; a Wheel; a bracket detachably secured to said harp; a guard having upwardly and forwardly extending arms, adapted to embrace the side of said Wheel and projecting above the same; a downwardly-projecting stem on said guard arranged through a suitable perforation in said bracket; a spring for holding said guard normally upward; means for adjusting the tension of said spring; and a pair of links connected to said bracket and to said guard, for the purpose specified.

3. The combination of a trolley-pole; a harp; a wheel; a bracket secured to said harp; a

ing arms adapted to embrace the side of said wheel and projecting above the same; a downwardly-projecting Stern on said guard arranged through a suitable perforation in said bracket; a spring for holding said guard normally upward; means for adjusting the tension of said spring; and a pair of links connected to said bracket and to said guard, for the purpose specified.

4. The combination of atrolley-pole; aharp; a wheel; a bracket detachably secured to said harp; a guard having upwardly and forwardly extending arms adapted to embrace the side of said wheel and projecting above the same; a spring for holding said guard normally upward; means for adjusting the tension of said spring; and a pair of links connected to said bracket and to said guard, for the purpose specified.

5. The combination ofatrolley-pole; aharp; a wheel; a bracket secured to said harp; a guard having upwardly and forwardly extending arms adapted to embrace the side of said wheel and projecting above the same; a spring for holding said guard normally. upward; means for adjusting the tension of said spring;

and a pair of links connected to said bracket and to said guard, for the purpose specified.

6. The combination of a trolley-pole; a harp; a trolley-wheel; a guard having upwardly and forwardly extending hook-shaped arms adapted to embrace the sides of said wheel and to project above the same; rearwardly-extending supporting-links; and a spring for holding said guard normally upward, for the purpose specified.

7 The combination of a trolley-pole; a harp; a trolley-wheel; a guard having upwardly and forwardly extending arms adapted to embrace the sides of said wheel and projecting above the same; rearwardly-extending supportinglinks for said guard; and a spring for holding said guard normally upward, for the purpose specified.

8. The combination of a trolley-pole; a harp; a trolley-wheel; a guard having upwardly and forwardly extending hook-shaped arms adapted to embrace the sides of said wheel and to project above the same; supporting-links for said guard; and a spring for holding said guard normally upward, for the purpose specified.

9. The combination of a trolley-pole; a harp; a trolley-wheel; a guard having upwardly-extending arms adapted to embrace the sides of said wheel and projecting above the same; supporting-links for said guard; and a spring for holding said guard normally upward, for the purpose specified.

10. The combination of a trolley-wheel; a suitable support therefor; a guard having upwardly and forwardly extending hook-shaped arms adapted to embrace the sides of said wheel and to project above the same; a support for said guard adapted to permit said guard to move downwardly at the sides of IO downwardly at the sides of said wheel; and a spring for holding said guard normally upward, for the purpose specified In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

CHARLES O. PHILLIPS. [L. s.]

Witnesses:

ETI-IEL A. TELLER, OTIS A. EARL. 

